Antenna



FIG. 1 is a front elevation view of an antenna.

FIG. 2 is a front elevation view of an antenna with broken lines showinga cover.

FIG. 3 is a top plan view of the antenna of FIG. 1.

FIG. 4 is a bottom plan view of the antenna of FIG. 1.

FIG. 5 is a side view of the antenna of FIG. 1.

FIG. 6 is a side view of the antenna of FIG. 1; and,

FIG. 7 is a rear elevation view of the antenna of FIG. 1 with brokenlines showing a cover.

The broken line showing is for illustrative purposes only and forms nopart of the claimed design.

CLAIM The ornamental design for an antenna, as shown and described.